Issue with Querying Large Table - mysql

Question

Started having the following errors as the size of my database grow. It's at about 4GB now for this table with millions of rows.
Laravel cant handle large tables?
$count = DB::table('table1')->distinct('data')->count(["data"]);
$count2 = DB::table('table2')->distinct('data')->count(["data"]);
SQLSTATE[HY000]: General error: 2014 Cannot execute queries while other unbuffered queries are active. Consider using PDOStatement::fetchAll(). Alternatively, if your code is only ever going to run against mysql, you may enable query buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute. (SQL: select count(distinct data) as aggregate from data)

Answer 1

I think the table is very large and will take some time to finish. You are running another huge query directly after which also needs a long time to fully execute. I think you need to rerun a second query when first finishes.
Please try this:
$count = DB::table('table1')->distinct('data')->count(["data"]);
if($count){
$count2 = DB::table('table2')->distinct('data')->count(["data"]);
}
But this will need a result from first the query.
Try using:
if($count>-1)
or
if(DB::table('table1')->distinct('data')->count(["data"]) >-1){
$count2 = DB::table('table2')->distinct('data')->count(["data"]);
}
For the MySQL statement this might be faster:
DB::table('table1')->select(DB::raw("SELECT COUNT (DISTINCT data)"))->count();
And best solution will be using execute as Laravel allow to use it too
Please tell me if you encounter any problems.